A SIP trunk, often known as an IP trunk or SIP trunking, is a digital connection between a non-public department alternate (PBX) and a public switched phone community (PSTN) or different VoIP supplier. It makes use of the Session Initiation Protocol (SIP) to determine and handle voice calls over an IP community.
SIP trunks provide an a variety of benefits over conventional TDM trunks, together with decrease prices, higher flexibility, and improved name high quality. They’re additionally extra scalable and simpler to handle. Consequently, SIP trunks have gotten more and more standard with companies of all sizes.
